1 способ:87 - (41 + y) = 2287 - 41 - y = 2246 - y = 22-y = 22 - 46-y = -24y = 24
2 способ:87 - (41 + y) = 2287 - 41 - y = 2246 - y = 22y = 46 - 22y = 24
Ответ: y = 24.
1 способ:
87 - (41 + y) = 22
87 - 41 - y = 22
46 - y = 22
-y = 22 - 46
-y = -24
y = 24
2 способ:
87 - (41 + y) = 22
87 - 41 - y = 22
46 - y = 22
y = 46 - 22
y = 24
Ответ: y = 24.